Adding nodes to top navigation bar using object model
                            
                         
                        
                     
                 
                
                    hi,
  i have to create a node to topnavigationbar. each node will have some pages 
 node--
        page1
        page2 
                  
1) i am able to create the node and adding pages but on the top navigation bar  when i click the node  the list is not collapsing ...
 
2) for pages i add i need to pass url 
 the url i an passilng is
  "/pages/pageviewer.aspx?RC=" +rc+"&RD="+rd;
but when i am check in the navigation under site settings --
the url it is taking is  "/pages/pageviewer.aspx"
can any one provide links or solution